CastleNet Technology (ROCO:8059) OCF Yield %: 54.28 (As of Jul. 16, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

ROCO:8059 CastleNet Technology Inc ROCO:8059
52 GF Score
Price NT$16.90
GF Value NT$365.62
Valuation Possible Value Trap
! 7 Warning Signs
View Full Analysis

What is CastleNet Technology OCF Yield %?

CastleNet Technology ROCO:8059 +1.81% 52 OCF Yield % is 54.28 as of Jul. 16, 2026. GuruFocus rates ROCO:8059 with a GF Score™ of 52/100 and a GF Value™ of NT$365.62 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 2,498 Hardware companies, CastleNet Technology ranks better than 98.24% on this metric.

OCF Yield % is calculated as Cash Flow from Operations divided by Market Capitalization. It is a financial solvency ratio that compares the operating cash flow a company is expected to earn against its market value.

As of today, CastleNet Technology's Trailing 12-Month Cash Flow from Operations is NT$1,780 Mil, and Market Cap is NT$3,280 Mil. Therefore, CastleNet Technology's OCF Yield % for today is 54.28%.

The historical rank and industry rank for CastleNet Technology's OCF Yield % or its related term are showing as below:

ROCO:8059' s OCF Yield % Range Over the Past 10 Years
Min: -27.9   Med: -4.44   Max: 57.94
Current: 54.28


During the past 13 years, the highest OCF Yield % of CastleNet Technology was 57.94%. The lowest was -27.90%. And the median was -4.44%.

ROCO:8059's OCF Yield % is ranked better than
98.24% of 2498 companies
in the Hardware industry
Industry Median: 2.23 vs ROCO:8059: 54.28

CastleNet Technology's OCF Margin % for the quarter that ended in Dec. 2025 was %.


CastleNet Technology OCF Yield % Explanation

Similar to Earnings Yield %, OCF Yield % is financial solvency ratio. A lower ratio suggests a less attractive investment, indicating that investors might not receive substantial returns in proportion to their investment. Conversely, a high operating cash flow yield signals that a company generates sufficient cash to comfortably meet its debts, obligations, and dividend payments, making it a promising investment choice.


CastleNet Technology OCF Yield % Related Terms


CastleNet Technology OCF Yield % Historical Data

* Premium members only.

The historical data trend for CastleNet Technology's OCF Yield % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

CastleNet Technology OCF Yield % Chart

CastleNet Technology Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
OCF Yield %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -22.49 -2.45 -5.45 -7.65 49.24

CastleNet Technology Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
OCF Yield % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -5.39 32.92 -7.06 -6.40 171.56

ROCO:8059 vs CSCO, CIEN, MSI: OCF Yield % Comparison

For the Communication Equipment subindustry, CastleNet Technology's OCF Yield %, along with its competitors' market caps and OCF Yield % data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


CastleNet Technology OCF Yield % vs Hardware Industry

For the Hardware industry and Technology sector, CastleNet Technology's OCF Yield % distribution charts can be found below:

* The bar in red indicates where CastleNet Technology's OCF Yield % falls into.


ROCO:8059
52GF Score
CastleNet Technology Inc ROCO:8059
OCF Yield % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

CastleNet Technology OCF Yield % Calculation

OCF Yield % is a financial solvency ratio that compares the operating cash flow a company is expected to earn against its market value.

CastleNet Technology's OCF Yield % for the fiscal year that ended in Dec. 2025 is calculated as

OCF Yield %=Cash Flow from Operations / Market Cap
=1780.302 / 3615.3025
=49.24%

CastleNet Technology's annualized OCF Yield % for the quarter that ended in Dec. 2025 is calculated as

OCF Yield %=Cash Flow from Operations * Annualized Factor / Market Cap
=1550.608 * 4 / 3615.3025
=171.56%

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about OCF Yield % →
What does a OCF Yield % of 54.28 mean?
CastleNet Technology (ROCO:8059) has a OCF Yield % of 54.28 as of Jul. 16, 2026. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on CastleNet Technology and its competitors. According to the industry distribution chart, CastleNet Technology ranks #44 out of 2498 companies in the Hardware industry, placing it in the top 1.8%.
Is CastleNet Technology's OCF Yield % too high?
CastleNet Technology's current OCF Yield % is 54.28. The Hardware industry median OCF Yield % is 2.23. CastleNet Technology's value of 54.28 is 2334.1% above this industry median. Based on the distribution chart, CastleNet Technology ranks #44 out of 2498 companies in the Hardware industry, which is in the top quartile — a strong position relative to peers. Overall, CastleNet Technology has a GF Score™ of 52/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does CastleNet Technology's OCF Yield % compare to CSCO and CIEN?
According to the Hardware industry distribution chart, CastleNet Technology ranks #44 out of 2498 companies for OCF Yield %. This places CastleNet Technology in the top 2% of its industry — outperforming the majority of peers. The industry median OCF Yield % is 2.23. CastleNet Technology's value of 54.28 is 2334.1% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good OCF Yield % for a Hardware company?
The median OCF Yield % among Hardware companies is 2.23, based on 2,498 companies in the industry. Companies in the top quartile (top 25%) have a OCF Yield % significantly above this median, while those in the bottom quartile fall well below. However, OCF Yield % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. CastleNet Technology's current OCF Yield % of 54.28 is 2334.1% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high OCF Yield % mean?
A high OCF Yield % can signal that a stock is expensive relative to its fundamentals. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on CastleNet Technology and its competitors. For the Hardware industry, the median OCF Yield % is 2.23 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. CastleNet Technology's current OCF Yield % is 54.28. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is CastleNet Technology stock overvalued right now?
Based on GuruFocus' analysis, CastleNet Technology (ROCO:8059) is currently considered Possible Value Trap. The stock's GF Value™ is NT$365.62, compared to a current price of NT$16.90 — trading 95.4% below its estimated fair value. The current OCF Yield % is 54.28 and 2334.1% above the Hardware industry median of 2.23. CastleNet Technology's overall GF Score™ is 52/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Yield % calculated?
OCF Yield % is calculated from a company's financial statements. For CastleNet Technology (ROCO:8059), the current OCF Yield % is 54.28 as of Jul. 16, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is CastleNet Technology (ROCO:8059) Overvalued in 2026?

Based on GuruFocus' analysis, CastleNet Technology stock appears to be undervalued. The current stock price of NT$16.90 is trading 95.4% below its estimated GF Value™ of NT$365.62. GuruFocus considers CastleNet Technology to be Possible Value Trap.

Key valuation signals for ROCO:8059:

  • OCF Yield %: 54.28
  • GF Value™: NT$365.62 vs. price of NT$16.90 (95.4% below fair value)
  • GF Score™: 52/100 with 7 warning signs
  • Industry Position: 2334.1% above the Hardware median (#44 of 2498)

No single metric tells the full story. See the ROCO:8059 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


CastleNet Technology Business Description

Address No. 14, Beishen Road, Ln. 141, Sec. 3, Shenkeng District, New Taipei City, TWN, 222004
CastleNet Technology Inc is a manufacturer of network communication equipment in Taiwan. It is predominantly engaged in the manufacturing and selling of consumer electronics products such as broadband communications and digital home entertainment. It offers products like EMTA Gateway, Data Gateway, Data Modem, and WiFi Mesh System among others. Geographically, the company generates a majority of its revenue from America followed by Asia, Europe, and Oceania.
52GF Score

Get the complete analysis for ROCO:8059

OCF Yield % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$16.90
Price
NT$365.62
GF Value